In the dispute with the American colonies his sympathies were with the latter, and in 1766 he carried the repeal of the Stamp Act.
Attempts to secure the repeal of this provision have been unsuccessful.
This led to an agitation for the repeal of the 44-% duty, but it was not till 1838 that the efforts to secure this were successful.
By this device the Lords were obliged to acquiesce in the repeal of the paper-duty.
Two of his speeches in particular attracted attention, one against the policy of protection (16th of March 1892), and the other against the repeal of the silver purchase clause of the Sherman Act (16th of August 1893).